There are about a dozen species of Amphilophus originating from the great lakes of Nicaragua.
All are often called by the made up trade name red devil, mideivil, and other common names.
Some are yellow, some white, some creamsicle, some are barred.
All look similar as juvies, but as they age change adapt different color versions.
All start out like the one above, but depending on species (or not), and or which lake they come from can be quite a variety of different colors, that may or may not have anything to do with species, all species have many different color morphs.
above Amphilophus amarillo (a barred Amphilophus), below Amphilophus flaveolus
not that far in the past, called a barred midas.
Unless the original catch location is known, it is almost impossible to know what species is what without a DNA test..
Most LFSs don't know, so often use the catch-all trade names, like red devil etc etc.
So any variety found in a LFS should be considered basically, "aquarium strain" Amphilophus.
